From: Ivan Levkivskyi Date: Sun, 2 Jun 2019 23:41:00 +0000 (+0100) Subject: Update the annotated assignment docs (GH-13757) X-Git-Tag: v3.8.0b1~40 X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=82eac26a73107ded733110cf11e59e95f41c197e;p=python Update the annotated assignment docs (GH-13757) --- diff --git a/Doc/reference/simple_stmts.rst b/Doc/reference/simple_stmts.rst index af7c0caff6..9c0430da1f 100644 --- a/Doc/reference/simple_stmts.rst +++ b/Doc/reference/simple_stmts.rst @@ -329,7 +329,8 @@ Annotated assignment statements statement, of a variable or attribute annotation and an optional assignment statement: .. productionlist:: - annotated_assignment_stmt: `augtarget` ":" `expression` ["=" `expression`] + annotated_assignment_stmt: `augtarget` ":" `expression` + : ["=" (`expression_list` | `yield_expression`)] The difference from normal :ref:`assignment` is that only single target and only single right hand side value is allowed. @@ -366,6 +367,11 @@ target, then the interpreter evaluates the target except for the last syntax for type annotations that can be used in static analysis tools and IDEs. +.. versionchanged:: 3.8 + Now annotated assignments allow same expressions in the right hand side as + the augmented assignments. Previously, some expressions (like un-parenthesized + tuple expressions) caused a syntax error. + .. _assert: